... for your choicesSilk Habotai sand washed, machine washable, 12 M/M, 14.5 M/M, soft and nice.Silk Fuji sand washed, machine washable ... is very durable.Silk charmeuse, best hand felling, 19 M/M, 16 M/MSilk/cotton satin is cheaper, silk stands for 55%, cotton ... for 45%,19 M/M.PS: measurement of weight of silk: momme (M/M)One momme equals to 4.3056 grams ...